Earth-anchor.



PATENTED JAN. 2, 1906.

G. F. SWORTFIGBR.

EARTH ANCHOR.

APPLICATION FILED AUG. 1. 1905.

ATTORNEY UNITED STATES PATENT oFFIoE.

v GEORGE F. SWORTFIGER, OF NEWARK, NEW JERSEY.

I EARTH-ANCHOR.

Specification of Letters Patent.

Patented Jan. 2, 1906.

Application file'l August 1,1905- $erial No. 272,210,

To all whom it may concern:

Be it known that LGEORGE F.SWORTFIGER, a citizen of the United 'States,and a resident of Newark, in the county of Essex and State of NewJersey, have invented certain new and useful Earth Anchors, of which thefollowing is a specification.

This invention relates to anchors for guys and like purposes, and hasfor its objects an easilyplaced and secure earth anchorage and one inwhich the anchor-bolt may be re of the anchor-blades.

covered if the anchorageshould be abandoned.

The objects are attained by the means set forth in this specification,and the accompanying drawings, in which like letters and numerals referto similar parts throughout the several views.

Figure 1 represents the anchor with its part spread out, as when inposition in the ground. Fig. 2 is an edge elevation of the parts of theanchor as folded in position for insertion in a hole in the ground. Fig.3 is a side elevation of the folded anchor. Fig- 4 representstheearth-plate. Fig. 5 is a partially cross-sectional view showing theinterlocking parts Fig. 6 is an end view of one of the anchor-bladesviewed from the hinge end. Fig. 7 is a bottom view of the box to whichthe blades are hinged.

The anchor comprises a box a, Figs. 1, 2, 3, 5, 7, having atransversely-rounded bottom 8 with perpendicular ends extended intohinge-lugs 7. A hole is made in the center of the bottom for the freepassage of the anchor-bolt cl. Contiguous to the hole 12 are lugs 11 11,between which a nut c on the bolt d finds lodgment to prevent itsturning, as shown particularly in Fig. 1. Within this box a two blades 6(shown in all the figures except and 7) are hinged to the lugs 7. Lugson the end of one blade pass between similar lugs on the other blade, asshown in Fig. 3, and a pin 10, passing through the lugs at each end ofthe box, enables the swinging of the blades to and from each other froma closed position, as shown in Fig. 2, to a horizontal position, asshown in Fig. 1.

Fig. 5 shows one end of the box a removed and shows how the downwardswing of the blade is limited by a notch 5 in the back of the lug 2,which impinges against the edge of the box a. As a means ofinterlockingtheblades the lugs 2 are extended to a point 3, Fig. 5,which is adapted on each blade to catch under the end of the oppositeblade, as shown in Fig. 1. The blades have a broad surface end of thebolt (1. It is also perforated with holes 15 15, that are adapted toreceive the projections 9, that are on the under side of the box a.(Shown in Figs. 1, 2, 3, 5, 7.) The projections are made tapering, sothat the plate 6 may be driven upon them hard enough to secure itagainst displacement except by forcing it ofi by means of the bolt d.

The anchor is operated as follows: The blades being securely hinged inthe box a, an anchor or guy bolt (1 is passed between the blades throughthe hole in the box a. A nut c is placed on the rod d, so as to beengaged by the lugs 11 11. The earth-plate is secured on the pins 9 9,and the end of the bolt has a seat in the recess 13 in the plate. Asthus united and folded the anchor presents the appearance shown by Figs.2, 3. A hole is bored in the earth of a size to admit of the easyinsertion of the anchor and of a suitable depth. The anchor is droppedto the bottom of the hole, resting on the earth-plate. The points of theblades will dro against the sides of the hole. Turning t e bolt willcause the nut thereon to rise, separating the anchor from theearth-plate, the plate serving as a firm foundation upon which tooperate the bolt. As the nut rises on the bolt the blades are forcedinto the soil and will continue their penetration until they are spreadout to a horizontal position, as shown in Fig. 1. The broken lines it h72/ represent the sides and bottom of the hole. The anchor can be drawnup to a solid bearing, so that in setting these anchors the spreading ofthe blades is a positive operation, leaving no doubt as to theirimmediately taking a full hold and no uncertainty as to whether the guywill give from a readjustment of the blades after they have been underpressure for a time. If it should be desired to abandon the anchorage,the bolt may be unscrewed and saved, while the remaining parts of theanchor would not be of sufiicient value to warrant digging them up.

The lugs 2 are represented as having their outer edges formed as arcs ofa circle conforming to the inner surface of the box or supporting-bodya. The curved form of the box is derived from the swing of the exten-IIO sion 3 of the lugs 2, so that the combination of curves is chieflyto produce a symmetry of construction. Thus other features of theconstruction may be varied without depar Having described my invention,what I claim, and desire to secure by Letters Patent, 1s

1. The combination in an earth-anchor of a supporting-body,earth-penetrating blades hinged therein, the blades having hinge-lugswith notches in their back edges to form catches against the supportingbody, the ends of the lugs extended to engage with the opposite bladeswhen the blades are wide open, the blades comprising broad surfacesterminating in rounded and outwardly-curved points, an anchor-boltpassing through the supporting-body between the blades, there being along thread on said bolt, a nut on the bolt below the supporting-body,there being lugs on the under side of said body to prevent the turningof the nut, and projections on the under side of said body for insertionin holes in an earth-plate, and an earth-plate as athrust-bearing forthe bolt.

2. In an earth-anchor as shown, a support ingbody with hinge-lugs, ahole through the center of the body iorthe anchor-bolt, a long threadedanchor-bolt, a nut on the bolt below said body, there being lugs on theunder side of said body to prevent turning of the nut, and therebeingprojections on the under side of the body to engage with holes in anearthplate, an earth-plate to engage with the proj ections on thesupporting-body and containing a recess for the end of the anchor-bolt,

blades with upturnededges forpenetrating the soil with rounded andcurved points, having hinge-lugs pivoted to the lugs of thesupporting-body, the lugs provided with notches for engagement with thesupporting-body, and extended ends for engagement with opposite bladeswhen the blades are wide open.

3. An earth-anchor with soil-penetrating blades pivoted to a movablesupport as set forth, an anchor-bolt provided with av long threadextending through the anchor, anut on the bolt held from turning bymeans on the anchor-bladessupport, and an earthplate to receive thethrust of the bolt.

4. An earth-anchor with soil-penetrating blades pivoted'to a movablesupport, an

anchor-bolt provided with a long thread extending through the, anchor, anut on the bolt below the anchor, there being lugs on the anchor toprevent the turning of the nut, there being projections on the anchor totemporarily hold an earth-plate by engagement with holes in said plate,and -an earth-plate to receive the thrust of the bolt.

5. In combination with .a anchorbolt, an anchor movable by means of along-threaded bolt through the anchor and a nut on the bolt under theanchor, the bolt thrusting against a fixed plate, separated from. theanchor whereby the anchor is caused to rise-by turning the bolt.

Signed at Newark, in the county of Essex and State of New Jersey, this17th day of July, A. D. 1905.

' GEO. F. SWORTFIGER.

Witnesses:

RosALiE KAPLAN', ARTHUR S. DE Volt.

